Can you add that information to the question? Your own thoughts on translating would be good to have, too, whatever they are. That helps write an answer that helps you.
– Joonas Ilmavirta♦Nov 25 '16 at 20:49

How does the English sentence "The narrowest road prevent/hinder to all men" relate to the Latin one? Is it a translation (by you, Google or something else) or some kind of context?
– Joonas Ilmavirta♦Nov 25 '16 at 20:55

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Thank you for providing more context! I reformatted your question. Feel free to edit again if you want.
– Joonas Ilmavirta♦Nov 25 '16 at 21:28

This sounds like a problem at a mountain path.
Horses fall down and a part of the path collapses, leaving a wide gap in the path.
Offendiculum means an obstacle, and in this context I think it is more likely to be a hole than a block on the road.
Dehiscens is the present participle of dehiscere, "to open up".
Either the path opens up and produces the obstacle, or the obstacle produced by the path opens up.
I cannot tell for sure whether dehiscens modifies trames or offendiculum.
It does not really make a big difference for translation or interpretation, though.

Multi vel equis, vel clitellariis, cum rebus superpositis, illic amissis, pauperati sunt.
Many lost horses or pack-saddles and the things on them and were thus impoverished.

People's possessions fell down and were lost.
I am not sure if it means short term possessions like travel gear or long term possessions if they were traveling with all they got.
As with the previous sentences, more context would help me find the most suitable translation, but this level of accuracy might be enough.

In this context, I might translate the key phrase omnibus dehiscens offendiculum as "a gaping obstacle for everyone" or something in that direction.
Or perhaps even "a hole in the path that no one could pass", depending on how you want to use the translation.

@turuncu, I'm glad if I could help. For future questions like this (and why not this one, too), I suggest adding your own translations of the surrounding text. That would achieve two things: Answering becomes easier and people see that you genuinely want to solve the problem but could not make it yourself.
– Joonas Ilmavirta♦Nov 25 '16 at 21:36

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@TKR, thanks! Will edit. I wonder why I missed that word in two dictionaries.
– Joonas Ilmavirta♦Nov 25 '16 at 21:36

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I wonder if there are many other situations where both altissimus and artissimus would make sense. (And not only to Elmer Fudd.)
– Joonas Ilmavirta♦Nov 25 '16 at 21:39